package com.huatai.common.error;

/**
 * @program: ht-system
 * @description: 全局异常捕获
 * @author: songxiude
 * @create: 2023-01-31 13:23
 **/
import java.util.Set;
import javax.servlet.Servlet;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;

import com.huatai.common.api.R;
import com.huatai.common.api.ResultCode;
import com.huatai.common.util.StringUtil;
import lombok.extern.slf4j.Slf4j;
import org.hibernate.validator.internal.engine.path.PathImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.http.HttpStatus;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.validation.BindException;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.HttpMediaTypeNotAcceptableException;
import org.springframework.web.HttpMediaTypeNotSupportedException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.MissingServletRequestParameterException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.NoHandlerFoundException;

@Order(Integer.MIN_VALUE)
@Configuration
@ConditionalOnWebApplication(
        type = Type.SERVLET
)
@ConditionalOnClass({Servlet.class, DispatcherServlet.class})
@RestControllerAdvice
public class RestExceptionTranslator {
    private static final Logger log = LoggerFactory.getLogger(RestExceptionTranslator.class);

    public RestExceptionTranslator() {
    }

    @ExceptionHandler({MissingServletRequestParameterException.class})
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public R handleError(MissingServletRequestParameterException e) {
        log.warn("缺少请求参数", e.getMessage());
        String message = String.format("缺少必要的请求参数: %s", e.getParameterName());
        return R.fail(ResultCode.PARAM_MISS, message);
    }
	@ExceptionHandler({DuplicateKeyException.class})
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleError(DuplicateKeyException e) {
		String message = e.getMessage();
		String[] splitAll = message.split("###");
		String firstInfo = splitAll[1];
		String[] parts = firstInfo.split("for key ");
		String value = parts[0].substring(parts[0].indexOf("'")+1,parts[0].lastIndexOf("'"));
		String key = parts[1].substring(1, parts[1].lastIndexOf("'"));
		String[] keySplit = key.split("\\.");
//        String errorMsg = String.format("唯一索引重复,参数值:%s,数据表名:%s,字段名:%s",value,keySplit[0],keySplit[1]);
		String errorMsg = String.format("唯一索引重复,参数值:%s,字段名:%s",value,keySplit[1]);
		log.warn("唯一索引重复:{}",e.getMessage());
		log.warn("唯一索引重复2：{}",e.getLocalizedMessage());
		return R.fail(400, errorMsg);
	}

    @ExceptionHandler({MethodArgumentTypeMismatchException.class})
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public R handleError(MethodArgumentTypeMismatchException e) {
        log.warn("请求参数格式错误", e.getMessage());
        String message = String.format("请求参数格式错误: %s", e.getName());
        return R.fail(ResultCode.PARAM_TYPE_ERROR, message);
    }

    @ExceptionHandler({MethodArgumentNotValidException.class})
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public R handleError(MethodArgumentNotValidException e) {
        log.warn("参数验证失败", e.getMessage());
        return this.handleError(e.getBindingResult());
    }

    @ExceptionHandler({BindException.class})
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public R handleError(BindException e) {
        log.warn("参数绑定失败", e.getMessage());
        return this.handleError(e.getBindingResult());
    }

    private R handleError(BindingResult result) {
        FieldError error = result.getFieldError();
        String message = String.format("%s:%s", error.getField(), error.getDefaultMessage());
        return R.fail(ResultCode.PARAM_BIND_ERROR, message);
    }

    @ExceptionHandler({ConstraintViolationException.class})
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public R handleError(ConstraintViolationException e) {
        log.warn("参数验证失败", e.getMessage());
        Set<ConstraintViolation<?>> violations = e.getConstraintViolations();
        ConstraintViolation<?> violation = (ConstraintViolation)violations.iterator().next();
        String path = ((PathImpl)violation.getPropertyPath()).getLeafNode().getName();
        String message = String.format("%s:%s", path, violation.getMessage());
        return R.fail(ResultCode.PARAM_VALID_ERROR, message);
    }

    @ExceptionHandler({NoHandlerFoundException.class})
    @ResponseStatus(HttpStatus.NOT_FOUND)
    public R handleError(NoHandlerFoundException e) {
        log.error("404没找到请求:{}", e.getMessage());
        return R.fail(ResultCode.NOT_FOUND, e.getMessage());
    }

    @ExceptionHandler({HttpMessageNotReadableException.class})
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public R handleError(HttpMessageNotReadableException e) {
        log.error("消息不能读取:{}", e.getMessage());
        return R.fail(ResultCode.MSG_NOT_READABLE, e.getMessage());
    }

    @ExceptionHandler({HttpRequestMethodNotSupportedException.class})
    @ResponseStatus(HttpStatus.METHOD_NOT_ALLOWED)
    public R handleError(HttpRequestMethodNotSupportedException e) {
        log.error("不支持当前请求方法:{}", e.getMessage());
        return R.fail(ResultCode.METHOD_NOT_SUPPORTED, e.getMessage());
    }

    @ExceptionHandler({HttpMediaTypeNotSupportedException.class})
    @ResponseStatus(HttpStatus.UNSUPPORTED_MEDIA_TYPE)
    public R handleError(HttpMediaTypeNotSupportedException e) {
        log.error("不支持当前媒体类型:{}", e.getMessage());
        return R.fail(ResultCode.MEDIA_TYPE_NOT_SUPPORTED, e.getMessage());
    }

    @ExceptionHandler({HttpMediaTypeNotAcceptableException.class})
    @ResponseStatus(HttpStatus.UNSUPPORTED_MEDIA_TYPE)
    public R handleError(HttpMediaTypeNotAcceptableException e) {
        String message = e.getMessage() + " " + StringUtil.join(e.getSupportedMediaTypes());
        log.error("不接受的媒体类型:{}", message);
        return R.fail(ResultCode.MEDIA_TYPE_NOT_SUPPORTED, message);
    }
}
